The thesis was made in co-operation with a pre-school group in Hämeenlinna. The aim of this thesis was to promote public health nurse’s compe-tence to encounter a group of children and give them information about healthy nutrition. It was decided to create a practice based thesis. The practice based sessions were supposed to guide preschoolers to healthy eating, and provide them positive images of healthy food. The purpose was to show things in a suitable way for children. Another purpose was to give them information that they can put into practice.

The target was to get preschoolers to pay attention to nutrition, for example by a plate model, play and homework. The aim was also to improve the well-being of preschoolers and their coping with a healthy diet. Moreover, the aim was to give information for the whole family, for example by homework.

The theory part was collected from a variety of different sources of information. The information was tended to adapt suitable for this thesis. The information was sought mainly of reliable books and electronic sources. The information was cross-checked to others to find the most reliable sources. The study used a practice based approach. The purpose was to maximize the benefits for both the authors and the partners. The method developed the public health nurse’s expertise, for example by information search and application of knowledge, group counseling and the health promotion perspective.

As a thesis’ development work a PowerPoint - presentation for pre-school to kindergarten teachers to be used in parents' evenings was made. The topic of the development work was the development of a 6-year-old, a healthy diet and eating situations from the family's point of view. The development work was carried out in cooperation with the same day-care center as the thesis.